Silicon Steel O Cores for Power Transformers

O CORE: An ideal core for audio transformer require extremely low magnetic leakage, low noise and high efficiency

O core also known as O-core or OA-core.
O core is a tape wound core in electrical steel, with circular cross section.
The key point of manufacturing an O core is material slitting, which is called curve slitting, material is slit into a continuous strip from small to big, and then from big to small in width.
After the cores are wound, they are put into vacuum furnace for stress relief annealing, so that the cores with the best electrical performance.

Standard core sizes from 10VA to 2000VA.

Features
Circular cross section
Closed magnetic path
Low magnetic leakage
Low noise
High efficiency

APPLICATIONS
1.High-end transformers in Audio system
2.Elevator transformer
3.Machinery transformer
OA cores can be supplied epoxy coated, cut or uncut.